mash: Move status area overview button to //ash/common

ash/system/overview/overview_button_tray.cc

Index: ash/system/overview/overview_button_tray.cc
diff --git a/ash/system/overview/overview_button_tray.cc b/ash/system/overview/overview_button_tray.cc
deleted file mode 100644
index 28469715ada2abca51f89ecadfbd1f7ed58a9766..0000000000000000000000000000000000000000
--- a/ash/system/overview/overview_button_tray.cc
+++ /dev/null
@@ -1,156 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "ash/system/overview/overview_button_tray.h"
-
-#include "ash/common/material_design/material_design_controller.h"
-#include "ash/common/session/session_state_delegate.h"
-#include "ash/common/shelf/shelf_constants.h"
-#include "ash/common/shelf/shelf_types.h"
-#include "ash/common/shelf/wm_shelf_util.h"
-#include "ash/common/system/tray/system_tray_delegate.h"
-#include "ash/common/system/tray/tray_constants.h"
-#include "ash/common/system/tray/tray_utils.h"
-#include "ash/common/wm/maximize_mode/maximize_mode_controller.h"
-#include "ash/common/wm/overview/window_selector_controller.h"
-#include "ash/common/wm_shell.h"
-#include "grit/ash_resources.h"
-#include "grit/ash_strings.h"
-#include "ui/base/l10n/l10n_util.h"
-#include "ui/base/resource/resource_bundle.h"
-#include "ui/gfx/paint_vector_icon.h"
-#include "ui/gfx/vector_icons_public.h"
-#include "ui/views/border.h"
-#include "ui/views/controls/image_view.h"
-
-namespace {
-
-// Predefined padding for the icon used in this tray. These are to be set to the
-// border of the icon, depending on the current shelf_alignment()
-const int kHorizontalShelfHorizontalPadding = 8;
-const int kHorizontalShelfVerticalPadding = 4;
-const int kVerticalShelfHorizontalPadding = 2;
-const int kVerticalShelfVerticalPadding = 5;
-
-}  // namespace
-
-namespace ash {
-
-OverviewButtonTray::OverviewButtonTray(WmShelf* wm_shelf)
-    : TrayBackgroundView(wm_shelf), icon_(nullptr) {
-  SetContentsBackground();
-
-  icon_ = new views::ImageView();
-  if (MaterialDesignController::IsShelfMaterial()) {
-    gfx::ImageSkia image_md =
-        CreateVectorIcon(gfx::VectorIconId::SHELF_OVERVIEW, kShelfIconColor);
-    icon_->SetImage(image_md);
-  } else {
-    gfx::ImageSkia* image_non_md =
-        ui::ResourceBundle::GetSharedInstance().GetImageSkiaNamed(
-            IDR_AURA_UBER_TRAY_OVERVIEW_MODE);
-    icon_->SetImage(image_non_md);
-  }
-  SetIconBorderForShelfAlignment();
-  tray_container()->AddChildView(icon_);
-
-  WmShell::Get()->AddShellObserver(this);
-  WmShell::Get()->GetSessionStateDelegate()->AddSessionStateObserver(this);
-}
-
-OverviewButtonTray::~OverviewButtonTray() {
-  WmShell::Get()->RemoveShellObserver(this);
-  WmShell::Get()->GetSessionStateDelegate()->RemoveSessionStateObserver(this);
-}
-
-void OverviewButtonTray::UpdateAfterLoginStatusChange(LoginStatus status) {
-  UpdateIconVisibility();
-}
-
-bool OverviewButtonTray::PerformAction(const ui::Event& event) {
-  WindowSelectorController* controller =
-      WmShell::Get()->window_selector_controller();
-  controller->ToggleOverview();
-  SetDrawBackgroundAsActive(controller->IsSelecting());
-  WmShell::Get()->RecordUserMetricsAction(UMA_TRAY_OVERVIEW);
-  return true;
-}
-
-void OverviewButtonTray::SessionStateChanged(
-    SessionStateDelegate::SessionState state) {
-  UpdateIconVisibility();
-}
-
-void OverviewButtonTray::OnMaximizeModeStarted() {
-  UpdateIconVisibility();
-}
-
-void OverviewButtonTray::OnMaximizeModeEnded() {
-  UpdateIconVisibility();
-}
-
-void OverviewButtonTray::OnOverviewModeEnded() {
-  SetDrawBackgroundAsActive(false);
-}
-
-void OverviewButtonTray::ClickedOutsideBubble() {}
-
-base::string16 OverviewButtonTray::GetAccessibleNameForTray() {
-  return l10n_util::GetStringUTF16(IDS_ASH_OVERVIEW_BUTTON_ACCESSIBLE_NAME);
-}
-
-void OverviewButtonTray::HideBubbleWithView(
-    const views::TrayBubbleView* bubble_view) {
-  // This class has no bubbles to hide.
-}
-
-void OverviewButtonTray::SetShelfAlignment(ShelfAlignment alignment) {
-  if (alignment == shelf_alignment())
-    return;
-
-  TrayBackgroundView::SetShelfAlignment(alignment);
-  SetIconBorderForShelfAlignment();
-}
-
-void OverviewButtonTray::SetIconBorderForShelfAlignment() {
-  if (ash::MaterialDesignController::IsShelfMaterial()) {
-    // Pad button size to align with other controls in the system tray.
-    const gfx::ImageSkia image = icon_->GetImage();
-    const int vertical_padding = (kTrayItemSize - image.height()) / 2;
-    const int horizontal_padding = (kTrayItemSize - image.width()) / 2;
-    icon_->SetBorder(views::Border::CreateEmptyBorder(
-        gfx::Insets(vertical_padding, horizontal_padding)));
-  } else {
-    if (IsHorizontalAlignment(shelf_alignment())) {
-      icon_->SetBorder(views::Border::CreateEmptyBorder(
-          kHorizontalShelfVerticalPadding, kHorizontalShelfHorizontalPadding,
-          kHorizontalShelfVerticalPadding, kHorizontalShelfHorizontalPadding));
-    } else {
-      icon_->SetBorder(views::Border::CreateEmptyBorder(
-          kVerticalShelfVerticalPadding, kVerticalShelfHorizontalPadding,
-          kVerticalShelfVerticalPadding, kVerticalShelfHorizontalPadding));
-    }
-  }
-}
-
-void OverviewButtonTray::UpdateIconVisibility() {
-  // The visibility of the OverviewButtonTray has diverge from
-  // WindowSelectorController::CanSelect. The visibility of the button should
-  // not change during transient times in which CanSelect is false. Such as when
-  // a modal dialog is present.
-  WmShell* shell = WmShell::Get();
-  SessionStateDelegate* session_state_delegate =
-      shell->GetSessionStateDelegate();
-
-  SetVisible(
-      shell->maximize_mode_controller()->IsMaximizeModeWindowManagerEnabled() &&
-      session_state_delegate->IsActiveUserSessionStarted() &&
-      !session_state_delegate->IsScreenLocked() &&
-      session_state_delegate->GetSessionState() ==
-          SessionStateDelegate::SESSION_STATE_ACTIVE &&
-      shell->system_tray_delegate()->GetUserLoginStatus() !=
-          LoginStatus::KIOSK_APP);
-}
-
-}  // namespace ash